Twin drainage fitting



Feb. l2, 1935. F, A. WARREN I. 1,991,130

v TWIN DRAINGE FITTING Filed oct. 21, 1953 Patented Feb. 12, 1935" f UNITED STATES PATE NT UFFICI-1 l v 3 11,991,1.1111v` f TWIN DRAINAGE FITTING y Frederick` Anton `Warren, Atlanta, Ga. Application October 21, 1933,` Serial `No.\69`4`,68f1- aolaims. (014182-531) gage respective surfacesfof aflashing sheet formed i with an openingregistering with lthe mainldrain- ,i age opening of .the iitting and constituting` diesto `shape theflashing intoconformity with the contour of` the die faces and means for locking land sealing the sections and flashing into a non-leakable" unitary structure whereby seepage `below y29 the upper end of the device and above said fiashi ing will be:` directed into the,` mainV drainage opening. i i Another important object of this invention .is

complemental inner and outer or upper and lower sections having a cylindrical body section con- `stitutingthe main drain and a vertical 'annular 'iiange spaced from said bodysection forming an annular channel, the 'bottom of which lis formed with a plurality of auxiliary drainage openings, 1and a removal means telescopicallyarranged with respect to `said bodysectionand engageable vwith vsaid ange to yprevent extraneous matterreaching said channel and-clogging said openings during installation of the device. v The present invention `relates to an `improved twin drainage tting for drainage systems in Ybuildings and has for its object to provide a device lofthis character wherein provision is made for a watertight connection between the flashing and the drainage system" and especially for draining Vthe seepagefrom the hashing and the outsideof the strainer-lor body section effected by meansof tween the flashingl and thecasting is sealedwith a low temperature metal cr alloy in a molten condition expanded by means of a nat tool tocom-V press the hashing against the outer casting to effect a Anon-leakable joint. c l A `further object kof this inventionis the 4provision of "aftwin drainage fitting comprising inner `and outercastings uniquely arranged so that the 'linner casting with openings for strainer and seepis the provision of a twin drainage iitting for a f openings in the inner or upper casting fashioned so asto require no cores. `The connection` be- Clallrlg `dtve Which likewise becomestopped llege openings may "be cast without the. aiduof `cores i and with an inner calking wall designed when operatively placed in the outer castingrto form a channeltoreceive the molten metal `which when expanded forms the watertight connection: The

' said inner calking wall is so designed that a sleeve can be placed in said channel to protect the seep,- age openings from becoming clogged with cement,

concreta-or other substances during installation.

Said inner casting also acts as a die in forming the'` flashing` in contour` with `said castings and 1.9 permitting itY to extendfrom the` floor `or roof to the main drain. Y

` `With these and other objects in view, which will' become `more. apparent as `the description proceeds, the invention `resides in thenconstruction, in?

combination and arrangement of parts, hereinafter more fully described and claimed,` and illustrated in the accompanying drawing,` in which like V characters of reference v indicate like parts throughout the several iigures, `of which:y @Q

Fig.` 1 is a vertical cross sectional view through my improved, twin? `drainage fitting illustrating the same in operative position. the provision ofa drainage fitting comprising l `on the line `2--2 of Figi 1.

employ two separate castings Supposed to make a 39 watertight connection between the ashing and 1 castings byirneansoffscrews, bolts, orclamping devices, whichmethod has proven unsatisfactory for the reason that gravel, cement, Yand other foreign substances get underthe flashing and pret5 vent a face to face connection between the-castings and the flashing, also `rough castings prevent a watertight connection; `the seepageopen-- `ings being made by drilling small` holes in the 1 castings often become clogged andin some cases f4.0 jslotsare provided in tlfieistrainer` base which method causesvthe drainage water rto pass over the` cement causing it tobecome saturated, and in other casessmall groovesv are `provided in -the 5 up,vthereby defeating their purpose, and it was to overcome such disadvantages andto `provide adrainage` device comprising `a lower orl outer substantially funnel-like section having an'inclined wall portion terminatingatits upper end 5p in a vertical annular flange adapted to engage the under surface of a flashing` sheet, suchyashing extending tothe main drainage opening, and a comple-mental section formed with `ak central tubular body section' and an annular vert-ical flange spaced from said central section to form a channel surrounding same, the bottom of said channel being formed with a plurality of drainage openings, the under surface of said upper section being inclined complementally with respect to the lower section and formed with a lateral ange, said section adapted to act as a die in shaping the dashing to conform to the interior contour of said lower section and said lateral flange forming a seat for calking means adapted to eilect a watertight joint and interlock said castings and flashing into a unitary structure, so that seepage above said flashing is directed through said device, that I designed the twin drainage iitting forming the subject matter of this invention.

In the illustrated embodiment characterizing this invention there is shown a double or twin drainage vfitting device A for noors, roofs, and the like, adapted for connection with the drainage system of a building designated as B. j In the present'instance the device A is shown as mounted in and adapted to effect drainage of a floor 1 and comprises the complemental inner casting section 2 and outer casting section 3. The outer section Sis formed with a central depending internally threaded annular flange 4 and flaring or extending outwardly and upwardly therefrom is the inclined section 5 terminating at its `upper end in the vertical wall or hub member 6. Said supporting orouter section 3 is adapted to be threadedly mounted on the upper end of main drain/pipe B of the drainage system with central opening'l of the same diameter as pipe B and registering therewith. Flashing sheet 8 of lead, copper, or any suitable waterproofing material is then placed over outer section 3 and shaped to conform to the contour thereof by inner or die section 2 so that'opening 9 of the same diameter or slightly larger than opening 7 will register with the latter.

The inner or die section 2 comprises an annular Vertical flange or wall 10 internally threaded asy at 11 and is formedadjacent the lower edge of said threads with Va lateral flange 12 forming an opening 13 adapted to register with openings '7y and 9 and constituting a stop or seat for the pipe or body section 14 threadedly mounted in said section 2 vand adapted to form a continuation of pipe B as will be apparent. The wall v10 extends below ange 12 and is formed with an upwardly and outwardly extending portion 15 constituting the bottom 'of channel 16 and terminating in a vertical wall or flange 1'? spaced Vvfrom wall 10, one surface of which constitutes the outer wall surface of channel 16 and the other surface the calking wall surface of channel 18 formed by walls 17 and 6. Adjacent its lower end, wall 17 is formedwith a lateral flange 19 adapted to contact flashing sheet 8 and shape it to engage the inner surface of wall 6 and lock or hold Vsame in such position as said die section 2 is possible leakage through the connection of parts of the device can only escape from opening 7 to drain B. Channel 16 is formed with a plurality -of openings 21 through which water or other fluid ,is directed from said channel to drain pipe B.

The joint or` connection between the sections y2 and 3 and the flashing 8 is sealed preferably by filling channel 18 with a low temperature molten metal C such as lead, tin, or alloy, and which is adapted to be worked into cooperative position by a suitable iiat tool with respect to the flashing 8, flange seat 19, and wall 10 to effect a watertight joint as will be apparent.

By reason of the above structural arrangement it will be noted that no seepage from above flashing 8 and no leakage between sections 2 and Sby reason of rough or non-tight tting complemental faces can escape except through opening 7 and main drain B. Also leakage from the device by reason of the employment of bolts or other clamping devices between the complemental sec-r tions is eliminated and the'structural arrangement of the device greatly simplified.

Threadedly mounted on the upper end of body section 14 is a substantially funnel-shaped strainer section 22 constituting the top section of the device and formed in the presentfinstance with a slotted face 23'adapted to seat inthe l countersunk opening 24 formed in the tiles` or other suitable floor 25 which said device is adapted to drain. v v

The device A is shown, in the present instance, as mounted in concrete 26, and during the'installation of the device and in order to protect and prevent extraneous matter -from clogging `openings 2l or the device below said openings during pouring of the concrete above said flashing, a cylindrical member 27 is telescopically arranged with respect to the body of the device with its lower end seating in channel 16vand supported by wall 17, andnot only preventing pipe B of the drainage system, then concrete 26` is pouredvup to the level or slightly above the upper edge of wall 6, then flashing sheet. 8 is placed on the concrete and section 3 with Aopening 9 in registration with opening 7, then inner die section 2 is placed over said sheet and driven or forced down within the outer casting or section 3 shaping the sheet to conform to the contour of said section and locking it therein, then channel 18 is filled with molten metal C which is expanded preferably by means of a flat tool to effect a watertight joint and to unite the sections and flashing into a unitary structure, then sleeve 27 of sufficient length to reach to or above the level of oor or roof 1 is placed in channel 16 and concrete 26 is then poured on said flashing and around said sleeve to the desired height orto floor 1. After said concrete has set, sleeve 27 is removed and body section 14 with strainer section 22 is then positioned, after which tile or other floor material 1 is laid, which completes the installation of the device. The device is then tov suitably mounted to effect drainage of floor l v through strainer 22 to pipe B and any seepage through concrete 26 above flashing sheet 8 will be directedto channel16 through openings 21 and to pipe B, as will be clear without further discussion.

In this connection it will be observed that I have provided a drainage fitting comprising twin appended claims without departing `from or sacrificingany of theV principles of this invention. p

From the above it Willbe` apparent that I have l designed a twin drainage litting comprising vfevv parts, expeditiously installable, manufacturable at a minimum of production cost, and eiiicient for the purposes intended. l

Although in practice I have `found that the form of my invention illustrated in the accompanying drawing and referred to in the above description as thepreferred embodiment is the most efficient and practical, yet realizing the conditions concurrent with the: adoption of my invention will necessarily vary, I desire to emphasize that various minor changes in details of construction, proportion and arrangement of parts, maybe resorted to within the scope of the Having `thus described my invention, what `I desire protected by Letters Patent is as set forth inthe following claims:

l. A drainage device for draining a oor, roof,

` or like areaand an area surrounding said device below said floor, comprising an outer section having a well and an inner section engageable in said `outer section and adapted to shape a flashing sheet to the contour of said outer section and maintain the same in engagement therewith, Wall means carried by said inner section vadapted, when said section is operativelyI positioned, to form in conjunction with the wall of the outer section an annular recess, calking means in said recess foreifecting a watertight connection between said sections and flashing sheet, and means in connection with said inner sectionfor directing seepagelfrom the area above said iiashing surroundingsaid device into said device. p

2. A method of constructing a drainage tting for house drainage systems consisting in embedding an outer section of the fitting in concrete, placing aviiashing sheet over said concrete and section, and shaping said sheet to conform with the contour ofthe outer section by pressing down f2() thereon an inner section having main and auxiliary openings 4comrnunicating with said outer section, then arranging a cylindrical member ex- 'teriorly with respect to said inner section, then Y pouring concrete surrounding said cylindrical member and over said dashing, and When'said concrete has set removing the cylindrical member, whereby clogging of said auxiliary openings v during construction of the Idevice is prevented `and spacingzand shaping of the concrete wall with respect to the innertsection is effected. l

irrnrinaarcr;1 ANTON WARREN. i 

